Q1
What causes air pollution?
AVehicle emissions and industry
BClean water
CFresh air only
DGreen plants
SSCClass 8 (SSC)Science (सामान्य विज्ञान)Ch 8 · Topic 2
Practice and Revision - Pollution
Let us practise and revise what we learned about pollution. Pollution from various human activities contaminates air, water, and soil, causi
Core concept
Air pollution results from vehicle emissions, industrial processes, and burning fossil fuels, causing respiratory diseases and climate change.
How it works
Water pollution comes from industrial waste, sewage, and agricultural runoff, harming aquatic ecosystems and human health.
Why it matters
Soil pollution results from pesticides, industrial waste, and improper disposal, affecting food safety and ecosystem health.
Key detail
Reducing pollution requires cleaner technologies, proper waste management, and individual actions like reducing, reusing, and recycling.
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Quick notes
• Air pollution: vehicles, industry, fossil fuels.
• Causes respiratory disease, climate change.
• Water pollution: industrial waste, sewage.
• Harms aquatic ecosystems, health.
• Soil pollution: pesticides, waste.
• Affects food safety, ecosystems.
• Reduction: cleaner tech, waste management.
• Also reduce, reuse, recycle individually.